Currently a non-executive at Betfair and Punch Taverns, he will also take the senior independent director role at ASOS on 1 October.

At IHG he will serve on the audit, remuneration and nomination committees.

Patrick Cescau, IHG's chairman, said: "I look forward to welcoming Ian to the IHG Board. His understanding of the hotel sector and his wealth of experience in senior executive and finance roles will be of great value to the group."

Dyson, one of the few FDs to step up to CEO of a major listed business from group FD at another company, was interviewed by Financial Director in 2007 during his Marks & Spencer tenure.